Utilização da classificação não- supervisionada na integração e interpretação de dados geofísicos em Cuba centro-oriental

Abstract

This paper presents results from unsupervised classification of magnetic (airborne), gravimetric and gamma-ray spectrometric (airborne) data in central-eastern Cuba, with the objective of assisting regional geologic and tectonic-structural interpretation in the area. This portion of Cuba comprises broad sectors of key geologic units recognized in the island, including the Cretaceous volcanic arc (CVA), the Mesozoic ophiolites, the margin of the Bahamas continental platform (Upper Jurassic-Upper Cretaceous) and the Cenozoic cover. The area's unique geological characteristic makes it an excellent 'laboratory' to use and evaluate potential field data and multivariate statistic methods. The study revealed that geophysical classes yielded through these methods correlate well with several geologic formations and tectonic features found in the area.